Open Stack

Hi Alioune and Cathy,
     For devstack on ubuntu14.04, the default ovs version is 2.0.2, so there was the error as Alioune said.
     Do we need to install speical ovs version in networking-sfc devstack plugin.sh?
    





在 2016-06-07 07:48:26，"Cathy Zhang" <Cathy.H.Zhang at huawei.com> 写道：


Hi Alioune,

 

Which OVS version are you using?

Try openvswitch version 2.4.0 and restart the openvswitch-server before installing the devstack.

 

Cathy

 

From: Alioune [mailto:balioune3 at gmail.com]
Sent: Friday, June 03, 2016 9:07 AM
To:openstack-dev at lists.openstack.org
Cc: Cathy Zhang
Subject: [openstack-dev][neutron][SFC]

 

Probleme with OpenStack SFC

Hi all, 

I've installed Openstack SFC with devstack and all module are corretly running except the neutron L2-agent

 

After a "screen -rd", it seems that there is a conflict between l2-agent and SFC (see trace bellow).

I solved the issue with "sudo ovs-vsctl set bridge br protocols=OpenFlow10,OpenFlow11,OpenFlow12,OpenFlow13" on all openvswitch bridge (br-int, br-ex, br-tun and br-mgmt0).

I would like to know:

      - If someone knows why this error arrises ?

     - is there another way to solve it ?

 

Regards,

 

2016-06-03 12:51:56.323 WARNING neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] OVS is dead. OVSNeutronAgent will keep running and checking OVS status periodically.

2016-06-03 12:51:56.330 DEBUG neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] Agent rpc_loop - iteration:4722 completed. Processed ports statistics: {'regular': {'updated': 0, 'added': 0, 'removed': 0}}. Elapsed:0.086 from (pid=12775) loop_count_and_wait /opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py:1680

2016-06-03 12:51:58.256 DEBUG neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] Agent rpc_loop - iteration:4723 started from (pid=12775) rpc_loop /opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py:1732

2016-06-03 12:51:58.258 DEBUG neutron.agent.linux.utils [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] Running command (rootwrap daemon): ['ovs-ofctl', '-O openflow13', 'dump-flows', 'br-int', 'table=23'] from (pid=12775) execute_rootwrap_daemon /opt/stack/neutron/neutron/agent/linux/utils.py:101

2016-06-03 12:51:58.311 ERROR neutron.agent.linux.utils [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None]

Command: ['ovs-ofctl', '-O openflow13', 'dump-flows', 'br-int', 'table=23']

Exit code: 1

Stdin:

Stdout:

Stderr: 2016-06-03T12:51:58Z|00001|vconn|WARN|unix:/var/run/openvswitch/br-int.mgmt: version negotiation failed (we support version 0x04, peer supports version 0x01)

ovs-ofctl: br-int: failed to connect to socket (Broken pipe)

 

2016-06-03 12:51:58.323 ERROR networking_sfc.services.sfc.common.ovs_ext_lib [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None]

Command: ['ovs-ofctl', '-O openflow13', 'dump-flows', 'br-int', 'table=23']

Exit code: 1

Stdin:

Stdout:

Stderr: 2016-06-03T12:51:58Z|00001|vconn|WARN|unix:/var/run/openvswitch/br-int.mgmt: version negotiation failed (we support version 0x04, peer supports version 0x01)

ovs-ofctl: br-int: failed to connect to socket (Broken pipe)

 

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Traceback (most recent call last):

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib   File "/opt/stack/networking-sfc/networking_sfc/services/sfc/common/ovs_ext_lib.py", line 125, in run_ofctl

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib     process_input=process_input)

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib   File "/opt/stack/neutron/neutron/agent/linux/utils.py", line 159, in execute

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib     raise RuntimeError(m)

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib RuntimeError:

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Command: ['ovs-ofctl', '-O openflow13', 'dump-flows', 'br-int', 'table=23']

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Exit code: 1

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Stdin:

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Stdout:

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib Stderr: 2016-06-03T12:51:58Z|00001|vconn|WARN|unix:/var/run/openvswitch/br-int.mgmt: version negotiation failed (we support version 0x04, peer supports version 0x01)

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib ovs-ofctl: br-int: failed to connect to socket (Broken pipe)

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib

2016-06-03 12:51:58.323 TRACE networking_sfc.services.sfc.common.ovs_ext_lib

2016-06-03 12:51:58.335 ERROR networking_sfc.services.sfc.common.ovs_ext_lib [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] Unable to execute ['ovs-ofctl', '-O openflow13', 'dump-flows', 'br-int', 'table=23'].

2016-06-03 12:51:58.337 WARNING neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] OVS is dead. OVSNeutronAgent will keep running and checking OVS status periodically.

2016-06-03 12:51:58.341 DEBUG neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-1258bbbc-7211-4cfd-ab7c-8b856604f768 None None] Agent rpc_loop - iteration:4723 completed. Processed ports statistics: {'regular': {'updated': 0, 'added': 0, 'removed': 0}}. Elapsed:0.085 from (pid=12775) loop_count_and_wait /opt/stack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py:1680

 
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